Dredger



Sept, 1.20; i927,I

` l643,20l G. E. DEAN DREDGER Filed-Aug. 28. 1924 12 l". J l

14 :1 I 13E "w T @uw 1 n il j 1 V .III ,I l` i Patented sept. 2o, 1927'.

UNITED 'STATES if NT OFFICE;

GEoReaEnGAn DEAN, or v'scienrrfroitt1.PENNSYLVANIA.

, DIRE'DGER.l

' panying drawing, wherein:

Figure 1 1s a side elevation,y partly 1n section, showing the dredger when not in use.

f Figure 2 is aside elevation showing the dredger ready for use.

Figure 3 is a view, partly in elevation and partly in section of the regulating cap.

Figure't is a plan view of' the outer member of the regulating cap. g

Figure 5 is a plan View of the inner member of the regulating cap.v

Figures 6 and 7 are plan'views of the regulating cap in its diiferent adjustments.

The dredger consists of a cylindrical body k1 having'at its upper end a `reduced extension upon which is removably fitted a regulating cap 2, the same preferablyhaving threads 3 by which it is mounted. The cap 2 preferably consists of inner and outer members 4 and 5, the inner member being stationary andthe outer member being rotatable and connected to the-inner member in any suitable manner, as by a marginal overturned flange 6 having a knurled face andv which engages over the edge of the outer member. The inner member is formed with a series of openings 7 and 7a and another series of openings 8, the openings 7 and 7l passing a greater amount of material than the openings 8. The outer member is formed with a series of openings 9 and 9a. In the first position of the outer member, as shown in Figure 6, its openings 9 and 9%1 register with the openings 7 and 7 a, respectively, and the openings 8 are covered. In the second position of the outer member, as shown 1n Figure 7, the openings 9 register with the.

openings 8 and the openings 7 and 7a are covered. In this way a selection of the quantity of material discharged is permitted, the first position of the outer member giving a free flow of a greater quantity( of material r and the second position of the outer member giving a free Vflow of a less quantity of ma- The invention is illustrated in the accom- Application med August es, 1924.' semi iro'. 734,778.

terial. The movement of' the outer member to either of the two positions described is suitably limited as byV forming the outer member with slots 10 adjacent its circumference and by forming'L the inner member with lugs 11 which project through the slots 10 and b y engagement with the ends of said slots limit the turning movement of the outer member.

The regulating cap is normally enclosed in a cover 12 which has a close surrounding fit upon the cylindrical body 1 and may be removably connected to either end of said body. The cover 12 is preferably of greater diameter than the body 1 and is provided with a reduced cylindrical portion 13 which fits upon said body. The quick and easy connection and disconnection of the cover 12 Vand body A1 is provided for by means of steeppitched co-operating threads, those on the cover being shown at 14 and those on the body at 15 and beingarranged adjacent the upper and lower ends of the body.

When the dredger is not in use the cover 12 isfitted at the upper end thereef and encloses the regulating cap, thereby to protect the contents of the dredger against such deterioration as might result from constant exposure to air, such as the loss of strength oraroma, or formation of lumps due to absorption of moisture.

When it is desired to use the dredger the cover is removed from the upper end of the body 1 and fitted on the lower end of said body and is thus always at` hand for y replacement when the use of the dredger is no longer required. By thus using the cover as a closure it is unnecessary to pro- -vide for a closed position of the rotatablev member of the regulating cap from which it follows that the rotatablermember is simplyvmoved from one open position to a position of vgreater opening and that an equally free flow of the material is permitted in either case.

Having fully described my invention, I claim:

l. A dredger consisting of a container having a perforated discharge cap. a cover fitted over said `discharge' capand means comprising elements provided on the cover and elements at *each end of the container to cooperate with said elements on the cover in providing for the quick attachment and removal of the cover with respect to either end of the container, the cover being thereilo Suid eovo und companion elomeuis p1'o- 10 vided in two series, one adjacent the top of Suid body und the other adjacent the bottom of said body whereby Suid @over muy be tted und secured on ei'hezf The uppel` end o1' the lower end. o' Suid body as und for 15 the purpose set forth.

In testimony whereof I zl'l'lx my signature.

GEORGE EDGAR DE AN. 

